2003 Chrysler PT Cruiser "code p0452 mean 2007" Questions

code p0452 for 2007 saturn arua xe Good explanation of the problem and suggestions at the link below. https://www.obd-codes.com/p0452 P0452 EVAP Pressure Sensor/Switch Low ????? factory service manual

Code P0452? http://howtobyme.blogspot.com/2011/11/code-p0452.html -------------                     

Code P0452? http://howtobyme.blogspot.com/2011/11/code-p0452.html -------------                     

Code P0452?http://howtobyme.blogspot.com/2011/11/code-p0452.html-------------                    OBD

code for a 2007 Pt Cruiser of P0452, what does this mean? and how do I go about fixing it? code is : natural vacuum leak detection means you have a vacuum leak somewhere, check your gas cap, remove it